— How could I thank you enough?
—Don’t mention it. Any other man_________ that.
| A．must do | B．could do | C．would have done | D．should have done |
______ I have a word with you? It won't take long.
| A．Can |
| B．Must |
| C．Shall |
| D．Should |
I borrowed the book Sherlock Holmes from the library last week, ______ my classmates recommended to me.
| A．who |
| B．which |
| C．when |
| D．where |
Last night, there were millions of people ______ the opening ceremony live on TV.
| A．watch |
| B．to watch |
| C．watched |
| D．watching |
______ carefully if any change occurs when doing experiments in the lab.
| A．Observe |
| B．To observe |
| C．Observed |
| D．Observing |
Jane is in a hurry because the train to the airport leaves ______ half an hour.
| A．by |
| B．in |
| C．for |
| D．until |